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仰角和俯角
Author:
現代中學數學 Modern Secondary Mathematics
Topic:
Triangles
,
Trigonometry
GeoGebra
New Resources
Rotating Points (Optical Illusion)
Supplementary Angles
Stairs (Optical Illusion)
"Compressed" Astroid as Envelope
Introduction
Discover Resources
SpecialRightTriangle2
ScottT3.ggb
Slope Fields
difference of line segments
Special Triangle Exploration
Discover Topics
Rotation
Rhombus
Tangent Line or Tangent
Special Points
Quadratic Equations